Chapter 1
Fatigue
Harsher than its type
How short were its legs?
Utilization isn’t graded for N957DT: too few of its flights were tracked to count its use fairly, in the full report too. So its free chapter here is Fatigue, which doesn’t depend on catching every flight.
Short legs put more pressurization cycles on the structure for the same time in the air. Worth checking its cycle-based inspection limits before a pre-buy.
Hours per landingLead measure. 15th percentile
Middle 1.6N957DT0.53+1.3 : 1middle Challenger 300 1.6 : 1
Short hops78th percentile
Middle 35%N957DT0%80%+42%middle Challenger 300 35%
Leg length45th percentile
Middle 471 nmN957DT200 nm1,000 nm+455 nmmiddle Challenger 300 471 nm